QQuickDialog: add missing standard button signals

There were no signals at all for the following standard buttons:
- Apply
- Discard
- Help
- Reset/RestoreDefaults

[ChangeLog][Controls][Dialog] Added missing applied(), discarded(),
helpRequested(), and reset() signals that are emitted when the
respective standard buttons are clicked.

Task-number: QTBUG-59423
Change-Id: I744a445be2c3506470bdd023e6909f483cc2520a
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquickdialog_p.h b/src/quicktemplates2/qquickdialog_p.h
index e6c8d1ce..8032cf83 100644
--- a/src/quicktemplates2/qquickdialog_p.h
+++ b/src/quicktemplates2/qquickdialog_p.h
@@ -96,6 +96,10 @@ public Q_SLOTS:
 Q_SIGNALS:
     void accepted();
     void rejected();
+    Q_REVISION(3) void applied();
+    Q_REVISION(3) void reset();
+    Q_REVISION(3) void discarded();
+    Q_REVISION(3) void helpRequested();
 
     void titleChanged();
     void headerChanged();